Proper errcode for broker transport failures, not just __FAIL (issue #64)
Proper errcode for broker transport failures, not just __FAIL (issue #64)

__TRANSPORT and __BAD_MSG were propogated as __FAIL, now fixed.

janmejay/librdkafka,zhangjingpu/librdkafka,frew/librdkafka,bwelling/librdkafka,jszwedko/librdkafka,bhuvanaurora/librdkafka,jszwedko/librdkafka,vincentbernat/librdkafka,okman1214/librdkafka,vincentbernat/librdkafka,frew/librdkafka,wzb56/librdkafka,rileyberton/librdkafka,smanders/librdkafka,zhangjingpu/librdkafka,vganapathi/librdkafka,smanders/librdkafka,lsniks/librdkafka,janmejay/librdkafka,vganapathi/librdkafka,jszwedko/librdkafka,bhuvanaurora/librdkafka,tattsun/librdkafka,smanders/librdkafka,vganapathi/librdkafka,tempbottle/librdkafka,rileyberton/librdkafka,orthrus/librdkafka,senior7515/librdkafka,wzb56/librdkafka,zhangjingpu/librdkafka,bhuvanaurora/librdkafka,stromnet/librdkafka,tattsun/librdkafka,tattsun/librdkafka,bwelling/librdkafka,senior7515/librdkafka,stromnet/librdkafka,lsniks/librdkafka,bwelling/librdkafka,stromnet/librdkafka,wzb56/librdkafka,okman1214/librdkafka,stromnet/librdkafka,senior7515/librdkafka,yazgoo/librdkafka,zhangjingpu/librdkafka,klonikar/librdkafka,tempbottle/librdkafka,frew/librdkafka,yazgoo/librdkafka,orthrus/librdkafka,lsniks/librdkafka,lsniks/librdkafka,senior7515/librdkafka,tempbottle/librdkafka,okman1214/librdkafka,janmejay/librdkafka,klonikar/librdkafka,smanders/librdkafka,bhuvanaurora/librdkafka,rileyberton/librdkafka,klonikar/librdkafka,wzb56/librdkafka,wzb56/librdkafka,rileyberton/librdkafka,bhuvanaurora/librdkafka,okman1214/librdkafka,bwelling/librdkafka,tattsun/librdkafka,vincentbernat/librdkafka,tempbottle/librdkafka,lsniks/librdkafka,orthrus/librdkafka,yazgoo/librdkafka,vincentbernat/librdkafka,frew/librdkafka,smanders/librdkafka,jszwedko/librdkafka,yazgoo/librdkafka,okman1214/librdkafka,frew/librdkafka,tempbottle/librdkafka,janmejay/librdkafka,klonikar/librdkafka,vganapathi/librdkafka,vganapathi/librdkafka,yazgoo/librdkafka,tattsun/librdkafka,orthrus/librdkafka,zhangjingpu/librdkafka,bwelling/librdkafka,stromnet/librdkafka,jszwedko/librdkafka,rileyberton/librdkafka